but first, the united states marine corps is wrapping up its decade long involvement in afghanistan. at the same time, the marines are retrimpg r thinking their doctrine and equipment news. they want light armored vehicles while shaping its new amphibious tractor to replace the vehicle that was canceled early last year. as the marines develop the requirements for their new fighting vehicle, they face challenges. first the new generation of precision weapons is pushing the marines farther out to sea than ever before complicating future amphibious operations. new vehicles and aircraft are steadily getting bigger making existing ships increasingly camped when fully loaded out. the man leading the process of shaping the future of the marine corps is lieutenant general richard mills charged with developing tactics and doctrine for the service. welcome to the program. >> thank you for having me. >> welcome as a fellow new yorker. >> it's great to be here. it's a great opportunity to talk about the future of the marine corps. >> you commanded troops in iraq and afghanistan. what are the thr